Home / 1,274,864.61-1,912,437.03-421,625.47

Finding the Fourth Proportional to 1,274,864.61, 1,912,437.03 and 421,625.47

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Solution

The fourth proportional to 1,274,864.61, 1,912,437.03 and 421,625.47 is: 632,484.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,864.61 : 1,912,437.03 = 421,625.47 : x
  2. Step 2: Convert to fraction form
    1,274,864.61/1,912,437.03 = 421,625.47/x
  3. Step 3: Cross multiply
    1,274,864.61x = 1,912,437.03 × 421,625.47
  4. Step 4: Simplify right side
    1,274,864.61x = 806,332,155,784.00
  5. Step 5: Solve for x
    x = 806,332,155,784.00/1,274,864.61
  6. Step 6: Final answer
    x = 632,484.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.